Load Balancing and Layer 4-7 Switching

Server Load Balancing and its Benefits

Server load balancing is the process of distributing service requests across a group of servers. This addresses several requirements that are becoming increasingly important in networks:
Many content-intensive applications have scaled beyond the point where a single server can provide adequate processing power. It is importan to have the flexibility to deploy additional servers quickly and transparently to end-users. Server load balancing makes multiple servers appear as a single server – a single virtual service – by transparently distributing user requests among the servers.

The highest performance is achieved when the processing power of servers is used intelligently. Our advanced server load-balancing infrastructure can direct end-user service requests to the servers that are least busy and therefore capable of providing the fastest response time.

The third benefit of server load balancing is its ability to improve application availability. If an application or server fails, load balancing can automatically redistribute end-user service requests to other servers within a server cluster or to servers in another location. Server load balancing also prevents planned outages for software or hardware maintenance from disrupting service to end-users.

Distributed server load-balancing products can also provide disaster recovery services by redirecting service requests to a backup location when a catastrophic failure disables the primary site.

Layer 4-7 Switching

Layer 4-7 switching refers to 'content or application aware' intelligent switching and deep packet inspection of IP application traffic. By increasing performance, security, availability, and scalability through content-aware intelligence, Layer 4-7 switching has become an indispensable component of new data center and network infrastructures.

What do you gain from Layer 4-7 Switching?